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Finding the Fourth Proportional to 132,123.60, 197,857.35 and 105,879.60

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Solution

The fourth proportional to 132,123.60, 197,857.35 and 105,879.60 is: 158,556.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,123.60 : 197,857.35 = 105,879.60 : x
  2. Step 2: Convert to fraction form
    132,123.60/197,857.35 = 105,879.60/x
  3. Step 3: Cross multiply
    132,123.60x = 197,857.35 × 105,879.60
  4. Step 4: Simplify right side
    132,123.60x = 20,949,057,075.06
  5. Step 5: Solve for x
    x = 20,949,057,075.06/132,123.60
  6. Step 6: Final answer
    x = 158,556.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.